<template>
    <div class="login_container">
      <div class="login_box">
<!--        头像区域-->
        <div class="avatar_box">
          <img src="../assets/logo.png" alt="">
        </div>
<!--        登录表单区域 ref是表单的实例对象，拿到ref就可以重置表单-->
        <el-form ref="loginFromRef" :model="loginFrom" :rules="loginFromRules" label-width="0px" class="login_from">
<!--          用户名 prop="username"获取用户名的格式验证规则-->
          <el-form-item prop="username">
            <el-input v-model="loginFrom.username" prefix-icon="iconfont icon-user"></el-input>
          </el-form-item>
<!--          密码-->
          <el-form-item prop="password">
            <el-input type="password" v-model="loginFrom.password" prefix-icon="iconfont icon-3702mima"></el-input>
          </el-form-item>
<!--          按钮-->
          <el-form-item class="btns">
            <el-button type="primary" @click="login">登录</el-button>
            <el-button type="info" @click="resetLoginFrom">重置</el-button>
          </el-form-item>
        </el-form>
      </div>
    </div>
</template>

<script>
export default {
  data () {
    return {
      loginFrom: {
        username: 'admin',
        password: '123456'
      },
      loginFromRules: {
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 16, message: '长度在 3 到 16 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLoginFrom () {
      this.$refs.loginFromRef.resetFields()
    },
    login () {
      this.$refs.loginFromRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginFrom)
        if (res.meta.status !== 200) return this.$message.error('登录失败！')
        this.$message.success('登录成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container{
  background-color: #2b4b6b;
  height: 100%;
}
  .login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);

    .avatar_box{
      height: 130px;
      width: 130px;
      border: 1px solid #eee;
      border-radius:50% ;
      padding: 10px;
      box-shadow: 0 0 10px #ddd;
      position: absolute;
      left: 50%;
      transform: translate(-50%,-50%);
      background-color: #fff;
      img{
        width: 100%;
        height: 100%;
        border-radius:50% ;
        background-color: #eee;
      }
    }
  }
  .login_from{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
  .btns{
  display: flex;
    justify-content: flex-end;
  }
</style>
